Metallurgy; an introduction to the study of physical metallurgy . Fig. Fis. 96. To face p. 220. THE MECHANICAL TESTING OP METALS 221 to the movable diaphragm of this hydraulic box is a small ramor plunger, which moves upwards through a short distance whenwater-pressure is permitted to act within the box. On thislittle ram is placed the test-piece, a baU-and-sooket joint beinginterposed in order to allow the upper surface of the test-pieceto assume the horizontal position required. The ball, whichin this machine is usually five millimetres in diameter, is held ina steel block attached to t
Metallurgy; an introduction to the study of physical metallurgy . Fig. Fis. 96. To face p. 220. THE MECHANICAL TESTING OP METALS 221 to the movable diaphragm of this hydraulic box is a small ramor plunger, which moves upwards through a short distance whenwater-pressure is permitted to act within the box. On thislittle ram is placed the test-piece, a baU-and-sooket joint beinginterposed in order to allow the upper surface of the test-pieceto assume the horizontal position required. The ball, whichin this machine is usually five millimetres in diameter, is held ina steel block attached to the bridge which spans the this steel block, however, three steel pins or feelers project. In their position of rest these project just far enoughto be level with the lowest point of the ball. When, therefore,the small ram is set so as to bring the upper surface of the test-piece just into contact with the ball, the three feelers will alsojust touch the surface of the test-piece. These three feelerscommunicate with a small piston which works in a smallre
Size: 1960px × 1275px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectmetals, bookyear1922
